Title Shortener

shortener.js

// ==UserScript==
// @name         Title Shortener
// @namespace    http://kendallfrey.com/
// @version      1.0
// @description  Removes cruft from page titles
// @author       Kendall Frey
// @include      *
// @grant        none
// ==/UserScript==

var observer = new MutationObserver(updateTitle);
observer.observe(document.head, { childList: true, subtree: true, characterData: true });

updateTitle();

function updateTitle()
{
    var title;
    if ("StackExchange" in window && document.location.pathname.match(/^\/questions\//))
    {
        title = document.title.replace(/^[^-]+ - (.*) - .*/, "$1"); // special handling for Stack Exchange questions, which put tag names before the question title
    }
    else
    {
        title = document.title.replace(/\s+[-|]\s+.*/, "");
    }
    if (title !== document.title)
    {
        document.title = title;
    }
}